VIAIR 48043 Chrome 200 PSI 480C Air Compressor 12 VOLT - 200PSI Max Working Pressure, engine must be running during use. 1.76 CFM Free Flow @ 0 PSI Harmount unit with heavy duty wire for permanent installation. Includes: Stainless steel braided hose, Inline check valve to eliminate high amperage restarts, vibration isolator, and remote air filter option. Patented design cyclinder head. Use thread sealant for proper installation. Thread tape is not recommended. Properly sealed, recommended torque is 12 to 15 feet pounds